Io 4K Plus is the cutting edge of capture and output hardware available over Thunderbolt 3, offering a full set of professional video and audio connectivity with support for the latest 4K/UltraHD devices, High Frame Rate (HFR), High Dynamic Range (HDR) and deep color workflows.

The power of Thunderbolt 3 enables Io 4K Plus to handle a wide range of formats from SD to HD, UltraHD and full 4K with frame rates up to 60p over both 12G-SDI and HDMI 2.0 with single cable simplicity, plus HDR support over both HDMI and SDI for emerging HDR workflows.

New Apple M1 Chip Support
Desktop Software v16.1 and above is optimized for the new Apple M1 chip with native support for AJA macOS drivers, application plug-ins, AJA Control Room, AJA Control Panel, AJA System Test and AJA NMOS software.

Apple Mac Pro Compatible
AJA offers full compatibility for the new Apple Mac Pro, including support for AJA Control Room with Metal compatibility as well as extensive support for a range of applications. For productions handling high resolution workflows all the way up to 4K, Io 4K Plus is a perfect companion with the new desktop offering Thunderbolt 3-based 12G-SDI and HDMI 2.0 capture and playback.

4K Closed Caption Support
AJA Control Room

Supports CEA-608 or 608-in-708 via ANC extraction firmware

Avid & Adobe Plugins

All SMPTE-291 (ANC) based captions supported
Adobe Premiere supports native 708 if the raw data is available. For instance in the Adobe plug-ins we handle the case where Premiere hands us full 708 data, we just pass it through to the device.

Avid Media Composer supports active video ANC (line 21) or ANC via ANC extractor/inserter (up to UHD/4K)

Professional Connectivity:
12G-SDI and HDMI 2.0
Today’s workflows demand speed, bandwidth and simplicity. Io 4K Plus supports 4K, UltraHD, 12G/6G/3G/1.5G-SDI, Dual Link, HD-SDI and SD-SDI as well as UltraHD and HD over HDMI 2.0 for both capture and output.

The HDMI output is also able to accurately display HDR 10 and HLG to support emerging HDR workflows.

12G-SDI and HDMI 2.0 bring both power and simplicity to your projects, with the ability to use single cables for both input and output for the most demanding workflows.

12G-SDI is backwards compatible with SDI sources, covering all your bases through a single port. HDMI 2.0 allows high raster and frame rate capture and the ability to display the same to affordable and beautiful HDMI 2.0 displays.

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• 4K/UltraHD/2K/HD/SD 10-bit I/O up to 50/60p
• 4x bidirectional 12G-SDI BNC with 16-channel embedded audio
• 4K/UltraHD HDMI 2.0 I/O with 8-channel embedded audio
• Two Thunderbolt 3 ports with loop through
• RGB 4:4:4 12-bit, YCbCr 4:2:2 10-bit and HFR workflows supported
• 4K Closed Caption Support
• VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry and Luminance via SDI
• PQ, HLG, HDR10, HDR 10+ and Dolby Vision Support
• HDR Metadata Capture and Auto Playback Detection
• Analog Audio flexibility with a choice of 8-channel In or 8-channel Out or 4-channel In and 4-channel out
• Includes support for the new Apple M1 chip
• Supports 12G and 6G I/O for Telestream Wirecast
• Supports Analog Audio I/O for Telestream Wirecast
• XLR 12V power for battery or AC use
• Headphone jack and level control for mobile and live environments
• RS-422 VTR control, Reference, LTC Input

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Video Formats
(4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
(UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
(2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
(2K) 2048 x 1080PsF 23.98, 24, 25
(HD) 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
(HD) 1080PsF 23.98, 24, 25, 29.97, 30
(HD) 1080i 50, 59.94, 60
(HD) 720p 50, 59.94, 60
(SD) 625i 50
(SD) 525i 59.94

Note: High Frame Rate capabilities are dependent on host system attributes. Not all systems and configurations will support all frame rates.

Video Input Digital
12G-SDI*, SMPTE-2082, 12-bit**, 10-bit
6G-SDI*, SMPTE-2081, 10-bit
3G-SDI, SMPTE 425
RGB 4:4:4 12-bit**, YCbCr 4:2:2 10-bit
1.5G-SDI, SMPTE 292M
Single Link HD-SDI YCbCr 4:2:2 10-bit
Dual Link RGB 4:4:4 12-bit**, Dual Link YCbCr 4:2:2 10-bit
270 Mbps SDI, SMPTE 259M-C
YCbCr 4:2:2 10-bit, 8-bit
HDMI v2.0
30/36-bits/pixel, RGB or YUV, 6 Gbps per color component
4K, UltraHD, 2K, HD and SD with HFR support up to 60p (4:2:2), 10-bit and 8-bit

*SDI connections are bidirectional. For 2K/HD, capture and monitoring can be simultaneous. For 4K/UltraHD with 12G-SDI, capture and monitoring can also be simultaneous. For 4K/UltraHD with 3G-SDI, all four connections must be used for either Input or Output. Additionally, 12G-SDI, 6G-SDI configured inputs support UltraHD / 4K only.
**Bit depth support is application dependent. Check with your software manufacturer for compatibility.

Video Output Digital
12G-SDI*, SMPTE-2082, 12-bit**, 10-bit
6G-SDI*, SMPTE-2081, 10-bit
3G-SDI, SMPTE 425
RGB 4:4:4 12-bit**, YCbCr 4:2:2 10-bit
1.5G-SDI, SMPTE 292M
Single Link HD-SDI YCbCr 4:2:2 10-bit
Dual Link RGB 4:4:4 12-bit**, Dual Link YCbCr 4:2:2 10-bit
270 Mbps SDI, SMPTE 259M-C
YCbCr 4:2:2 10-bit, 8-bit
HDMI v2.0
30/36-bits/pixel, RGB or YUV, 6 Gbps per color component
4K, UltraHD, 2K, HD and SD with HFR support up to 60p (4:2:2), 10-bit and 8-bit

*SDI connections are bidirectional. For 2K/HD, capture and monitoring can be simultaneous. For 4K/UltraHD with 12G-SDI, capture and monitoring can also be simultaneous. For 4K/UltraHD with 3G-SDI, all four connections must be used for either Input or Output. Additionally, 12G-SDI, 6G-SDI configured outputs support UltraHD / 4K only.
**Bit depth support is application dependent. Check with your software manufacturer for compatibility.